𓈖 (U+13216, Gardiner N35) is the Egyptian "water ripple" hieroglyph. See: List of Egyptian hieroglyphs#N for its list entry Egyptian unilateral signs for its role as phonetic sign for n Egyptian_language#Prepositions for its role as preposition M#History for its role as historical origin of the letter M
See also Nu (god of primeval waters) Deshret (alternative n sign) Gardiner's Sign List
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